0.68 Ct Natural Blue-Green Sapphire Octagon Cut Unheated Madagascar Gemstone

Product Description

800

A rare and attractive 0.68 carat natural blue-green sapphire from Madagascar, featuring a distinctive octagon cut, natural untreated origin, and a captivating blend of blue and green hues. This gemstone showcases excellent brilliance and a sophisticated geometric shape, making it an exceptional choice for collectors and custom fine jewelry designs.

Expertly fashioned into an elegant octagon cut, the gemstone displays crisp facet junctions and remarkable light performance. The octagon shape offers a modern architectural appearance while maximizing brilliance and highlighting the sapphire’s unique natural color zoning.

Displaying an appealing blue-green coloration, this sapphire combines the richness of blue sapphire with subtle green undertones, creating a highly desirable and increasingly sought-after color profile. The stone is completely unheated, preserving its natural characteristics exactly as formed within the earth. Untreated sapphires are significantly rarer than heated stones and are highly valued by gemstone collectors and connoisseurs.

Its balanced dimensions and uncommon cut make it an excellent centerpiece for bespoke rings, pendants, earrings, and luxury custom jewelry creations.

Gemstone Specifications

Gemstone: Natural Blue-Green Sapphire
Species: Natural Corundum
Variety: Sapphire
Origin: Madagascar
Weight: 0.68 Carats
Dimensions: 6.7 × 4.0 mm
Shape: Octagon
Cut Style: Faceted Octagon Cut
Color: Blue-Green
Clarity: Eye-Clean to Slightly Included (visual grade not specified on label)
Transparency: Transparent
Treatment: Unheated / Untreated
Luster: Excellent Vitreous Luster
Hardness: 9 on the Mohs Scale

Why Choose This Gemstone?

• Natural Madagascar Sapphire
• Rare Unheated / Untreated Stone
• Unique Blue-Green Color Combination
• Elegant Octagon Cut
• Excellent Brilliance and Transparency
• Durable for Daily Wear
• Ideal for Bespoke Fine Jewelry
• Attractive Collector's Gemstone
• Distinctive Alternative to Traditional Blue Sapphire